Hockey helmet



FIG. 1 is a perspective view of a hockey helmet showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines shown in FIGS. 1-6 are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a hockey helmet, as shown and described. 